2189394901268 has 24 divisors (see below), whose sum is σ = 3845982591360. Its totient is φ = 1090546802720.

The previous prime is 2189394901241. The next prime is 2189394901277. The reversal of 2189394901268 is 8621094939812.

It is a self number, because there is not a number n which added to its sum of digits gives 2189394901268.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1648073 + ... + 2663631.

It is an arithmetic number, because the mean of its divisors is an integer number (160249274640).

Almost surely, 2^{2189394901268} is an apocalyptic number.

It is an amenable number.

2189394901268 is a deficient number, since it is larger than the sum of its proper divisors (1656587690092).

2189394901268 is a wasteful number, since it uses less digits than its factorization.

2189394901268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017607 (or 1017605 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 62.

The spelling of 2189394901268 in words is "two trillion, one hundred eighty-nine billion, three hundred ninety-four million, nine hundred one thousand, two hundred sixty-eight".